When the client is overweight, it can be encouraged for him/her to get rid of bodyweight as this will likely reduce the strain over the knee. Corticosteroid injections can ease symptoms for a couple months, but this isn't a remedy for arthritis. You will find surgical and non-surgical treatments for all sorts https://www.theorthopaedicandpainpractice.com/everything-you-need-to-know-about-knee-surgery-in-singapore/